The first one I was told it was the bubble gum chalice, The second I got in a trade with a local lfs owner for some sps. The first one has black in it and some yellow. The second has black and or purple streaks and the eyes are green and white.
That first piece looks HOT. Like Nick said, it's really hard to make an ID on such a chalice. If it came with a name, then great, but if not, then it's just a nice looking piece that hopefully you enjoy. Bubblegum is thrown around alot, but would seem appropot for that piece. I wouldn't mind a frag of it. ;D